chore: import upstream snapshot with attribution

2026-07-13 12:40:33 +08:00
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+# North Star
+
+> **Edit this file.** It is the single source of direction the loop aligns every
+> increment to. The planner ranks work against it; the builder builds toward it.
+> Be concrete — vague direction produces vague increments.
+
+## Mission
+
+<One or two sentences: the problem this repository solves and who it's for.>
+
+## Right now
+
+<The current priority — what "better" means this month. The planner weights the
+queue toward this.>
+
+## Guardrails
+
+- One concern per PR; small and reversible.
+- The gate is green CI, not a human review — keep the test/lint suite strong,
+  because the loop is only as good as its evaluator.
+- **Off-limits without a human** (surface as notes, never auto-merge): breaking
+  public API changes, brand/positioning/marketing copy, new dependencies,
+  architectural rewrites, product-default changes with broad behavioral impact.